Traction-vehicle.



R. E. ZAGER. TRAGTIQN VEHICLE.

APPLICATION FILED JAN. 12, 1912. 1,055,010. Patented Mar.4, 1913.

2 SHEETS-SHEET l.

W/zfaesses Zhi/enfer R. E; ZAGER. TRAGTION VEHICLE.

APPLIGATION FILED JAN. 12, 1912.

1,055,010, K Patented M3124, 1913.

2 SHEETS- SHEET 2.

Tavel/fof' ROBERT ZAGER, 0F HARDY,l CALIFORNIA.

TEAcTrN-vEr-.rn

Specification of Letters Patent.

Application le'd January 12, 1912. Serial No. 670,808.

To all lwhom, t may concern.'

Be it known that I, ROBERT E. ZAGER, a citizen of the United States, residing at Hardy, in the county of Mendocino and State of California, have invented new and useful Improvements in Traction-Vehicles, of which the following is a specilication.

' This invention relates toimprovements in traction vehicles, and particularly pertains to the steering and'driving gears thereof.

It is the object of this invention to provide a running gear for traction vehicles in which the front and rear trucks are swiveled and adapted to .be swung in opposite directions in unison vin steering the vehicle and in which the fro-nt and rear wheels maybe power driven from one source of power irrespective of the positions of the trucks.

Other objects will appear in the following specifi ation.

The invention consists of the parts and the construction and combination of parts as hereinafter more fully described and claimed, having reference to the accompanying drawings, 111 which p Figure 1 is a side elevation of the invention. Fig. 2 is a plan View of same with parts broken away. Fig. 3 is a view in elevation of one of the trucks with parts broken away. Fig.` 4 is an enlarged detail section onthe line W-VV Fig. 3. Fig. 5 is an enlarged detail 'section on the line ).-X Fig. 3. .-Fig. 6 is an end view of the truck bolster taken on the line Y.-Y Fig. 3.

j -In the drawings, A represents the chassis .or trame of a traction vehicle, which frame may be of anylsuitable construction and\is l supported upon bolsters 2 adjacent to its the slot in the stem 21 to lock the shaft and stem ,together in Sacha manner that when the shaft 22 is revolved the stem 21 will rotate therewith and at the `"same time admitfront and rear ends. Y

Thebolsters 2 -are swivelly connected to vertically movable truck bolsters which v are supported "ufpn' suitable l springs 4 mounted on thetruck frame 5; the swiveled connection between the bolsters2and` a; truck' formed in the upper lendet-the'nvotecl lringy bolster 3 comprising a ring 6 pivotedatj on the truck bolster.3 to rock sidewise 'in transverse relation'to the-chassis Aand--a ring 8 rigidly mountdd on thef'underside of the bolster. 2 `which .1s supported-on ball-,f l' bearings '9 carried in a clrcular racewayf 6, as showtilin Fig; 4.' H I j `The vouter .ends-of .the truck holsters 3 extend between'jparallel vertical cposts 1 car;-

-, `with flanges 11 vwhich project over theouter are fortified? faces of the posts 10; pins 12 on the posts 10 extending through vertical slots formed inthe flanges l1, as shown in Fig. 6. This construction forms a `guide for the truck bolster 3 and retains it in place-on the truck frame 5, and. at the same time admitting of vertical movement of the bolster 3 `in Vrelation to the frame 5. -The vertical movement of the bolster 3 is cushioned by the@I springs 4 in the usual manner. Side bearing plates 13 secured tothe bolster, 3 arev disposed between the bolsters 2 and 3 to limiti the sidey rocking movement of the bolsterf.-

in relation to the bolster 3. i

The truck franies 5 are supported end upon wheels B, which are here its Patented Mia-1'. 4, 1913'. p

mounted on revoluble shafts14 journal-ed Y on the truck frames 5, as shown in"-QFig. 3,4 C

Each of the wheel'sB is b are rigidly mbunted on the ends of the shafts 17 and the gears aand d are revolubly mounted on a casing'lS, which in turn isrevolubly mounted on the shafts 17 in'the usual manner.

A beveled gear 19 is vformed 'on one end of each casing 18 and r,meshes with a' pinlon 2O mounted on the lower end of a vertical stem 21 which extends into a tubular shaft .22. The stem 21 is slotted longitudinally,

and pins 23 extend through'theshaft 22 and of a' reciprocal movement of' thess'tem in re;

4lation to the shaft. The shaft '22;is con`- nected to a' beveled gear 24 through anni- -versal joint 25"and vpasses throughfthe ringsshaa 'as ,Gand 8, -as shown in`Fig. n and vpin 21" forming 4a ,kingfpinjaround which ith'etruck frames 5 revolve with Ithe gears 24.011 the king-pins in such manner that when the countershaft' 's fro,

,1615; A `'countershaft 26 extendslegthwseof Y vthe chassis ce'ntrally thereof z'1nd1lias/pin-v f ions 2.7frigidly`lmounted thereon which'mesh rear truck frames 5 will be rotatedin unison through the differential gears and thereby rotate the wheels B through the pinions 16. and internal gears l5 to pro el the vehicle. The countershaft 26 maybe riven from any suitable sourceof power; an engine 27 operating through transmission gears 28 being here shown for that purpose.

As a means for retarding the movements of the vehicle, band brakes A56 are provided the brakes 56 being arranged to act on theA casing 18 of the differential gears, as shown in Fig. v5. Any suitable means may be employed for operating the brakes as desired; the mechanism here shown comprising arms 57 on shafts 58, Ito the ends of which the bands 56' are attached, rocker arms 59' on the shafts 58 yconnected to rods 60 leading to a rocking lever 61 disposed centrally of the chassis A, and a rod 62 connectingthe lever 61 to a foot lever 63 by the operation of which the brake bands may be tlifovvn in or out of engagement with tlie brake drum formed on the differential casing.

Having thus described my. invention, what I claim and desire to secure by Let- 1. In a traction vehicle, a main frame, a truck frame, a ring pivotally mounted on said truck, a ring on said main frame bearing on the ring on the truck, a tubular shaft'I mounted in said main frame extending Copies of this patent may he obtained for ve cent's leach,l by addressing the Washington, D. CL

through said rings, a universal joint in said shaft, a shaft extending into said tubnlar shaft and splined thereto, differential gears carried on the truck frame, means for driving said gears from said shafts, traction Wheels on said truck frame, and means for rotating said wheels from said differential gears. y l

2. In a traction vehicle, a mfain frame, a truck frame, a ring pivotally mounted on said truck, a ring on said main frame bearing on the ring on the truck, a tubular shaft mounted in said main frame extending through Ysaid rings, a universal joint in said shaft, a shaft extending into said tubular shaft and s lined thereto, differential gears carried on t e truck frame, means for driving said gears from said shafts, traction Wheels on said truck frame, means for rotaUing said wheels from said differential gears including shafts connected with the differential gears, pinions on said shafts, and internal gears on said Wheels with which said pinions mesh.

In testimony whereof I have hereunto set my hand in the presence .of two subscribing Witnesses. Y

y ROBERT E. ZAGER. Witnesses:

JOHN H. Hamme, CHARLES EDELMAN.

Commissioner of Patents. 

